Safe to Plant

Lupin · Lashio, Shan State, Myanmar

When to sow lupins in Lashio

Main outdoor window

not outdoors here

The window this page is built around.

Timed from last spring frost

no spring frost

In Lashio, on your chosen risk.

First autumn frost

no autumn frost

The far end of the outdoor season.

The average last frost. Half of all years are later than this.

Step by step in Lashio

Each window is a range, not a single day. Earlier in the range buys you a longer season; later in it buys you a safer one.

Frost tolerance
Very-hardy
Damaged below
-30°C (-22°F)
First crop
Year 1
Hardy to
Zone 4a–8a
Min soil temp
10°C (50°F)
Spacing
50 cm
Sowing depth
20 mm (0.8 in)
Sun
Full

Lupins through the year

Against the frost risk in Lashio

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Frost risk Today

Why these dates

Sow direct a fortnight before the last frost, or start indoors eight weeks earlier - the seed germinates much better if chipped or soaked overnight first. Plants flower in their second year and are usually past their best by their fourth, so sow a few every year. Cut the spent spikes to get a second flush.

Hardy to -30C. Slugs destroy the emerging spring crowns far more often than frost does, and a wet winter on clay rots the deep taproot.

Seed packets and extension guides express timing as weeks either side of the last spring frost, because that is the only reference point that travels. Lupins are timed from 8 weeks before that frost for an indoor start, with planting out 2 weeks after it, and this page simply resolves those offsets against the frost date computed for Lashio.

Lashio sits in zone 11a, which is milder than this crop wants, and a winter that never really arrives is its own problem. The dates below still describe the right time of year; the open question is survival rather than timing.

Do not expect a crop in the first year. A plant set out now should give its first worthwhile pick around year 1, and will then produce every year after that, which is what makes the planting decision worth getting right the first time.

See every crop timed for Lashio →

Growing lupins in Lashio

How much frost will lupins tolerate?

Hardy to -30C. Slugs destroy the emerging spring crowns far more often than frost does, and a wet winter on clay rots the deep taproot.